Hi,

Purchased a Deco M4 whole home mesh system with 3 M4s to replace my Sky Modem/Router. 

I am struggling to work out how to use it as a modem, as my BT (UK) wall box coming in has a phone socket, and the filter that was in there only adds an ADSL socket, and the M4 has an Ethernet socket (Not 100% i got the terminology correct there, but they are different) so i cant plug the M4 directly in to be a modem.

I can plug the M4 using Ethernet cable into the Sky router and i have internet via the M4 (yet to set up the second and third M4s) but thats not why i purchased it. What do i need to get to sort this?

thanks